backup sights

Apart from some traditionalists, iron sights don't often get much respect these days. After all, with high-powered optics and even sights with smartphone-enhanced live HUDs, who needs a set of backup sights?   Well, just about everyone.  That's who. Just because iron sights are old-fashioned, that doesn't mean they don't still have a place on modern weaponry.  They're exactly the sort...